The selection of filter cloth is crucial for the effectiveness of filtration. During the operation of a filter press, the filter cloth plays a key role. Its performance and the correctness of its selection directly impact the filtration results.

Among the currently used filter cloths, the most common are those woven from synthetic fibers. Based on their material, they can be categorized into polyester, polyvinyl alcohol, polypropylene, nylon, and others. To achieve an ideal balance between retention efficiency and filtration speed, the selection of filter cloth must also take into account the particle size, density, chemical composition of the slurry, and the specific filtration process conditions. Due to differences in the weaving materials and methods, properties such as strength, elongation, air permeability, and thickness vary, all of which influence the filtration outcome. In addition, other filtration media include cotton fabrics, non-woven fabrics, mesh screens, filter paper, and microporous membranes, which are selected based on actual filtration requirements.

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